Rolling-mill.



Patented Dec. sly-190i.

' T. WILLIAMSON.

ROLLING MILL. (Application filed. July 12, 1901.)

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ROLLING MILL.

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4 UNITED ST TE THOMAS WILLIAMSON, on 'otnvnnatin, onto, assicson JOHN enerations; F YOUNGSTOWN, onto.

-II'R'OLLING-MIL1L..'.

srnerncnrron formingpm" of Letters Patent No. 690,382, dated December 31, 1901.

' Lpp1.iofltion filed m 12, 1901. Beriallio. 68.078. momma To all whom it may concern.- Be it known that I, THOMAS WILLIAMSON,

a citizen of the United States, resi-di'ng'at Cleveland, in the county of Cuyahoga and State of Ohio, have invented-certain new and useful Improvements in- Rolling-Mills, of;

which the foilowing'is a specification.

liLvinvention relates to the art of -metalrolling in general and to the improvement to of mills employed in this connection for sharp-.-

ing and rolling from thebloom or billet bars, such asgrooved street-rails. ordinarily constructed comprise a set of reversing-engines coupled to a train of pinions,

, in turn connected toa set of roughing orshapir-g roils,'and finally a connected set of finishing ro1ls,-in which latter reside the novel features of my present invention.

More particularly stated my invention con- Another and no less important. feature of invention resides in apower-press and its actuating mechanism for settingand shaping 3c the end of a bar or rail preparatory to entering the last finishing-pass between theafere said horizontal and vertical'rolls.

, Still other features of improvement consist in the general arrangement and combination 3 of rolls and their supporting-housings,whcrebytheoutside verticalroil in particular may be readily removed, repaired, or replaced should occasion for no doing arise.

Among its chin-la and advantages my in- I 4- vention contemplates and effects'a material increase in thegeneral efliciency of mills, as

also their durability. It obviates the necessity of a dummy pass, and consequently saves the time and laborwhich would otherwise be 45, required to make such pass. It presents the bar orrail to the final finishing-pass ata higher degree of heat than would be the case were a dummy pass used, which results in a better rolled product with less wear and tear 5oupon the mill andreduces to aminimum breakage of, the rolls themselves.

These mills as-- The invention" wiilbehereinafter described, and particularly pointed out in the claims fo1-' v; lowing.

' In'the accompanyingdrawingsgvhich for-{rt 5., part of this ispecification, and whereon cot er-,1 responding letters of reference indicate same par-ts in the several views, Figure liis aside elevation of a set of finishing-rolls embody ing my improvements. Fig. 2 is an end view of my invention. Fig. 3 is a detailfiagmen- .tary view illustrating a supporting-bracket anda portion of the upper t'oggle-arm's for actuating the bending-press. Fig. 4 is a top plan view, ofan oscillating cylinder for 0pmating the toggle, andFig. 5 is aporresponding view of the bending-press with a section of rail in the course of bending.

Reference being had to the drawings and letters thereon, A A indicate the vertical '70 members of a mill-housing, wherein are suitably journaled horizontal and vertical rolls'B,

' B, and 0, respectively, alldriven at uniform speed from a common source of power. The

horizontal r olls B B project through housing A,where, in conjunction with the flanged verticalroll 0, they constitute the final pass of the train, while, as clearly shown by F-ig. 1,

said vertical roll 0 is positively driven from the finishing-rolls in either direction by the 8o agency of pinions D D, a shaft E, journaled above in housing A A, and miter or bevel tooth gears F, which-transfer thehorizontal motion to a vertical. In this connection it should be particularly'noted that all movable 8 5 parts thus far described are rendered easily adjustable by, means of outside adjustable bearings,such as a,f or convenience of removal or compensation for ordinary wear and tear, and the vertical roll 0 is thus made adjust- 9o able with relation to horizontal rolls B Bfor' the purpose of applying pressure to shape-and reduce a bar or railin coui-seotiinishing insteadof serving merely in the apacity of a guide or friction roller.

G indicates an upstanding block or anvil keyed or otherwise firmly secured to the base of the mill or housing A, the face whereof is configured to receive one side of a bar or rail to be operated upon,w'hi1e at b uponsaid block rep I is hinged a power-press H, the inner working face whereof is substantially a counterpart of a arms e f, respectively, each arranged in duthe purpose of quickly and forcibly throwing struction, it should be particularly noted that t tion .witlrja st'a'tteme'nt or operation tofollow.

' finishing pass formed by a com bin ationiof the J 4 by means of a throttle-valve'(notshown) us;-

the rail-groove inbloekG aforesaid, while its extreme outer edge terminates; infa downtnrned flange or lip c for purposes which will later appear'. To the upper portion of housing A is bolted a projecting bracket I, mounting a stud-pin d, firoin which latter depend, in pivotal n'elation, upper Kandloi'ver togglcplicate pairs for purposes of strength and convenience of. assembling. lfivotally mounted u pen another bracket similarly secured -to'- the side of housing A is an oscillating cylinder or engineLprovided with a piston g,operated by steam orvo tl'lei-"fiuitr pressureaud" it s'elf pivotally connected to thetogg-l e-arms. of for same when required, aswill appear in 'connec- The foregoing being a 'generai h description, of myinvention in ts preferred form of con-' I by no means lim it myself to" the p'ie'cise'construciion and arrange men t of. parts herein Shos ana described. n thecon'trary,many

changes and modifications will-readily sng: gest themselves "to'th oseskilled in the art to wh ich these i m pro\-*ern ei its relate which are! entirely Within the spirit 'of my presentinven tion, and for all'such Ifclai n the; protection rolls E, ii", and C. ;At this instantsteainfor' other motive fluid is admitted to cylinder der control o'fthe operator, whereupon togglear'nisc f are driven outward and press H de} sccnds forcibly, its adrance'lip z.- serving to instantly and rilTectually break down or bend the previously-upsianding rail-flange, as indicated at 1 Fig; :3, thus adapting itfor immediate entrance between rolls 1 ii, and 0 in ali'nenien t iherowitlnfromwhichi temerges the comploteand finished productoftheniill. .[Iaving thus described my invention, its use, and purposes, what I claim,'and desire to set of finishing-rolls and their housing-oi a powor' press pivotally"s'upported? upon the housing 'for shaping thea'dvz'ince "end oi? a rail preparatory to entering the iinalpass, substantially as described.

2. In a roiling-mill the combination with a setfof finishin rol'lsia-nditheir hou'sin or. a.

power press, pivotally supported 11 pen the housing for shaping the advance end of a rail preparatory to entering the final pass, and a toggleiever for actuating said press, substantially as described.

3Q'In a rolling-mill the combination with a set of finish-ing-rollsand their housing, of a power press pivotally supported upon the housing for shaping the advance end of a rail preparatory to enteringthe final pass, a toggle-lever for actuating saidprefss, and a Iiuidpressure eiiginle' for throwing" said togglefle- Yer, si'i'bstanti-ally as described. a ,4. In:

' supported upon the housing for shaping'the advance endfo'f a .railjaset of'finishing-rolls coniprising'a pair of horizontal and one vertical roll, thelattercooperatin g wi'th saidhorizontal rolls .toforin' the .iinal pass, substantially as described. 1

comprising a set of'horizontalrolls projecting 'through the' housing, and one vertical roll adjacent to the projecting end of said horizontal rolls, and 1 cooperating therewith to forinthe final pass, all of said rolls being drivenffironra com'monsource of' power, a powewpress'pivotally supported upon said 3 housing,iforshaping the advance end ofarail preparatory to entering the final pass, and a 5. .T'In" a rolling-mill; the combination with a suitable housing, of a set of finishing-rolls,

I -olling iniil the combination with snitablehousing, of .a po.wer-press pivotally toggle-lever for, actuating said press, sub- I 'siantiallyas described.

6'. in a rolling-mill, the combination with a suitable housing, of a set of finishing-rolls, comprising a pairof horizontal rolls and one vertical roihsupported in a housing common to all, and all dfrivenfrom a common source of power, a power-press pivotally supported upon said'housing, for shapingtheadvance end of a rail preparatory to entering the iinal pass, and a toggle-lever for actuating said 7 press,substantially as described.

In testimony whereof Isubscribo my signature in presence of two witnesses. THOMAS \VlLT/I'AMSON.

W i tnesses secure by Letters Patent, isp 1. In a rolling-mill the combination with a 

